A Secured Authentication Protocol for Wireless Sensor Networks Using Elliptic Curves Cryptography

Sensors

Hsiu-Lien Yeh³  Tien-Ho Chen²  Pin-Chuan Liu²  Tai-Hoo Kim¹ 

[1] Department of Multimedia Engineering, Hannam University, No.133 Ojeong-dong, Daeduk-gu, Daejeon 306-791, Korea; E-Mail:;Department of Computer Science, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, HsinChu, 30013, Taiwan; E-Mails:;Institute of Information System and Applications, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, HsinChu, 30013, Taiwan

关键词: authentication;    security;    ECC;    wireless sensor network;   

DOI  :  10.3390/s110504767

来源: mdpi

【 摘 要 】

User authentication is a crucial service in wireless sensor networks (WSNs) that is becoming increasingly common in WSNs because wireless sensor nodes are typically deployed in an unattended environment, leaving them open to possible hostile network attack. Because wireless sensor nodes are limited in computing power, data storage and communication capabilities, any user authentication protocol must be designed to operate efficiently in a resource constrained environment. In this paper, we review several proposed WSN user authentication protocols, with a detailed review of the M.L Das protocol and a cryptanalysis of Das’ protocol that shows several security weaknesses. Furthermore, this paper proposes an ECC-based user authentication protocol that resolves these weaknesses. According to our analysis of security of the ECC-based protocol, it is suitable for applications with higher security requirements. Finally, we present a comparison of security, computation, and communication costs and performances for the proposed protocols. The ECC-based protocol is shown to be suitable for higher security WSNs.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.